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✅ From 15 months up to 12 years
✅ From 76cm to 150cm
✅ Isofix Installation
✅ Approval: R129 (i-Size)
The Advansafix PRO car seat is adaptable, suitable for children from 15 months old and 76 cm tall up to 150 cm (approx. 12 years), approved under the R129 (i-Size) safety standard. It always travels forward-facing, and the transition from the five-point harness (76-105 cm or 22 kg) to the three-point seat belt with SecureGuard (100-150 cm) is quick and easy with the FLIP&GROW system.
76-105 cm or 22 kg: 5-point harness
From 76 cm and 15 months up to 105 cm in height or 22 kg in weight (whichever comes first), the child is secured to the car seat with a five-point harness, which distributes impact forces at five points: two on the shoulders, two on the hips, and one on the buckle located between the legs. The harness pads reduce the child's movements in case of a collision, in addition to providing greater harness comfort. In this phase, the seat is installed using Isofix and Top-Tether.
100-150 cm: belt with SecureGuard
From 100 cm in height (and no later than 105 cm or 22 kg), the child is restrained directly with the car's three-point seat belt, in combination with the SecureGuard. This piece adds a fourth anchor point to the belt to keep the lap section in the correct position over the pelvic area, preventing it from dangerously riding up to the abdomen. It helps reduce forces on the abdomen by up to 35% in case of a frontal impact. In this phase, the seat is installed using Isofix.
When it's time to transition from the harness to the seat belt, it will be much easier thanks to the FLIP&GROW function. Simply press a button to unlock the headrest and adjust it to the required height, then store the harness (without removing the chest pads) in the back of the backrest, behind the cover, so it doesn't get lost. Next, move the FLIP&GROW adjustment plate, rotate it to position the SecureGuard over the car seat, and the transition is complete.
Other features of the Britax Romer Advansafix PRO car seat:
- Includes XP-PAD cushion for use with the car seat belt to protect the neck
- Side Impact Cushion Technology (SICT)
- 3 recline positions
- V-shaped headrest
- Independent Isofix arms
- Removable and machine washable cover
- At only 44 cm wide, it allows you to install 3 car seats in the back of the car
Dimensions: 60-83 x 44 x 48
Weight: 10 kg
Approval: UN R129/03
- With us, you will have expert human support before, during, and after your purchase
- Child road safety techniques
- Safest products on the European market for babies
- Babywearing consultants
- Local business
- Women-owned
- LGBTQ+ friendly
✅ From 15 months to 12 years old
✅ From 76cm to 150cm
✅ Isofix Installation
✅ Approval: R129 (i-Size)
The Advansafix PRO car seat is adaptable, suitable for children from 15 months old and 76 cm tall up to 150 cm (approx. 12 years), approved by the R129 (i-Size) safety standard. It always travels forward-facing, and the transition from the five-point harness (76-105 cm or 22 kg) to the three-point seat belt with SecureGuard (100-150 cm) is quick and easy with the FLIP&GROW system.
76-105 cm or 22 kg: 5-point harness
From 76 cm and 15 months up to 105 cm in height or 22 kg in weight (whichever comes first), the child is secured to the car seat with a five-point harness, which distributes impact forces at five points: two on the shoulders, two on the hips, and one on the buckle located between the legs. The harness pads reduce the child's movements in case of a collision, in addition to providing greater comfort to the harness. In this phase, the seat is installed using Isofix and top-tether.
100-150 cm: seat belt with SecureGuard
From 100 cm in height (and no later than 105 cm or 22 kg), the child is secured directly with the car's three-point seat belt, in combination with SecureGuard. This piece adds a fourth anchor point to the belt to keep the lap section in the correct position over the pelvic area, preventing it from dangerously riding up to the stomach. It helps reduce forces on the abdomen by up to 35% in case of a frontal impact. In this phase, the seat is installed using Isofix.
When it's time to switch from the harness to the seat belt, the transition will be much easier thanks to the FLIP&GROW function. Simply press a button to unlock the headrest and adjust it to the required height, then store the harness (without removing the chest pads) in the back of the backrest, behind the cover, so it doesn't get lost. Next, move the FLIP&GROW adjustment plate, rotate it to position the SecureGuard over the car seat, and the transition is complete.
Other features of the Britax Romer Advansafix PRO car seat:
- Includes XP-PAD cushion for use with the car seat belt to protect the neck
- Side Impact Cushion Technology (SICT)
- 3 recline positions
- V-shaped headrest
- Independent Isofix arms
- Removable and machine washable cover
- With a width of only 44 cm, it allows you to install 3 seats in the back of the car
Dimensions: 60-83 x 44 x 48
Weight: 10 kg
Approval: UN R129/03
- With us, you'll receive specialized human support before, during, and after your purchase
- Infant road safety techniques
- Safest products on the European market for babies
- Babywearing consultants
- Local business
- Women-owned
- LGBTQ+ friendly
✅ Super light and compact: only 6.9 kg and with dimensions approved for cabin luggage (check with the airline).
✅ Easy to transport and store: folds with one hand and stands upright when closed.
✅ Comfort on any journey: all-wheel suspension, reclining backrest, and adjustable footrest.
✅ Protection and climate control: extra-large extendable canopy with ventilation, breathable backrest, and soft padding.
✅ Ready to use from birth: includes comfort padding, bumper bar, and cup holder.
✅ Perfect companion for active families: ideal for travel, city strolls, or family trips.
The Britax Römer Flylite Stroller was created for families who love to travel and need an agile and practical stroller. Light and easy to maneuver, it's perfect for navigating busy streets, airports, or exploring new destinations.
With automatic one-hand fold, it transforms into a compact format (56 × 45 × 25 cm) that meets IATA cabin baggage standards* and stands upright when closed — perfect for storing on the plane, in the car, or in small spaces.
The extra-large, extendable canopy, with a ventilation window, protects the baby from sun and drizzle, ensuring good air circulation. The breathable mesh backrest, comfort padding, and all-wheel suspension ensure a smooth ride, even on uneven terrain.
The stepless reclining backrest and adjustable footrest allow the baby to travel comfortably lying down to sleep or sitting up to explore. The removable bumper bar and 5-point harness offer additional safety.
(*) It is always recommended to confirm with the airline the accepted dimensions for cabin baggage, as they may vary.
Key features of the Britax Römer Flylite Stroller
- Lightweight: only 6.9 kg.
- Compact one-hand fold, stands upright when closed.
- Cabin dimensions: 56 × 45 × 25 cm (folded).
- All-wheel suspension for smooth rides.
- Swivel front wheels for greater agility in tight spaces.
- Continuous reclining backrest (lying to sitting).
- Adjustable footrest.
- Extra-large extendable canopy with ventilation window.
- Breathable mesh backrest for better ventilation.
- 5-point harness for baby's safety.
- Removable bumper bar for easy access.
- Includes comfort padding and cup holder.
- Reflective details on the wheels highlight the stroller even in low light.
- Large under-seat basket with up to 6 kg capacity.
What's included
- Stroller chassis with wheels.
- Seat.
- Extra-large extendable canopy.
- Comfort padding.
- Removable bumper bar.
- Cup holder.
- Under-seat basket (6 kg capacity).
Technical Specifications
- Dimensions open (H × W × D): 103 × 45 × 78 cm
- Dimensions closed (H × W × D): 56 × 45 × 25 cm
- Weight of chassis and wheels: 6.9 kg
- Backrest length: 48 cm
- Footrest length: 18 cm
- Seat area (W × D): 32 × 18 cm
- Under-seat basket capacity: 6 kg
- Seat capacity: 22kg
Instruction Manual
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Why order from us at Bonabebe ❤- With us, you will have specialized human support before, during, and after purchase.
- Child car seat safety techniques.
- The safest products on the European market for babies.
- Babywearing consultants.
- Local business.
- Women-owned.
- LGBTQ+ friendly.
The Britax Römer Swivel-Grow Max Air is a car seat designed to accompany a child's growth with evolving safety, comfort, freshness, and practical everyday use. From newborns up to approximately 7 years old (40–125 cm), it combines AirSense ventilation, 360° rotation, and stable installation with ISOFIX connectors and a support leg.
Highlights of the Swivel-Grow Max Air AirSense™ Ventilation: Fresh Comfort on Every JourneyAirSense ventilation technology creates a continuous flow of fresh air through the car seat's structure.
The result? A cool environment even on hot days, ideal for long trips or daily commutes.
- Advanced integrated ventilation
- Continuous air distributed laterally
- Keeps the child comfortable and relaxed
360° Rotation: Total Practicality
The 360° rotation allows you to easily swivel the seat to place or remove the child effortlessly.
- One-hand control
- Full rotation for front access
- Facilitates daily placement
- Ideal for quick routines and stress-free travel
Sun Canopy: Extra Protection
The sun canopy offers additional sun protection against intense sun.
- Wide coverage for bright days
- Creates extra shade
- Integrated UV protection
- Foldable and easy to adjust
Grows with the Child: From Newborn to 7 Years Old
This car seat is evolutionary, adapting to all stages:
- Includes a newborn insert (initial comfort and a cozy feel)
- 5-point harness up to approximately 105 cm
- Transitions to a high-back booster seat
- Use up to 125 cm (~7 years)
Evolving Safety with i-Size R129 Standard
The Swivel-Grow Max Air complies with the i-Size R129 standard, ensuring high protection standards:
- Rearward-facing travel up to 105 cm (5x safer option)
- Forward-facing use from 76 cm
- Side protection with deep padded side wings
- Robust structure for multi-directional impacts
The car seat uses independent ISOFIX connectors for easy and precise installation.
- Direct connection to the vehicle
- Full control during assembly
- Reduces installation errors
The support leg adds stability:
- Robust support on the car floor
- Minimizes movement in case of impact
- Ensures secure fastening
- Maximum safety
- Installation with ISOFIX + support leg
2. Forward-Facing (76–125 cm)
- More space and freedom
- Progressive use as the child grows
3. Booster Seat Mode (100–125 cm)
- Use with the vehicle's seat belt
- Backrest adjusted to height
Technical Specifications of the Britax Römer Swivel-Grow Max Air Car Seat Feature Detail Child height 40 – 125 cm Approximate age 0 – 7 years Supported weight up to 18 kg Standard i-Size R129 Installation ISOFIX + support leg / vehicle belt Facing direction Rearward-facing (40–105 cm) / Forward-facing (76–125 cm) Rotation 360° rotation with one-hand control Dimensions 57 x 44 x 56 cm Seat weight 14.4 kg Frequently Asked Questions about the Britax Römer Swivel-Grow Max Air Car Seat
Does the Swivel-Grow Max Air have newborn capacity?
Yes. It includes a newborn insert, ensuring adequate support and comfort from the first days.
Does AirSense ventilation make a difference?
Yes, it creates a continuous airflow, preventing heat build-up and providing fresh comfort, especially in summer.
Is the 360° rotation really useful?
Very much so. It greatly facilitates daily life, especially in lower cars or tight parking spaces.
Is it compatible with all cars?
Being i-Size R129, it has high compatibility, but it is recommended to check with the brand's compatibility system.
Why order the Britax Römer Swivel-Grow Max Air Car Seat at Bonabebe ❤
- With us, you will have specialized human support before, during, and after purchase
- Child road safety techniques
- The safest products on the European market for babies
- Babywearing consultants
- Local business
- Women-owned
- LGBTQ+ friendly
The Britax Römer Swivel-Grow Max Air is a car seat designed to accompany the child's growth with evolving safety, comfort, freshness, and practical everyday use. From newborns up to about 7 years old (40–125 cm), it combines AirSense ventilation, 360° rotation, and stable installation with ISOFIX connectors and a support leg.
Highlights of the Swivel-Grow Max Air AirSense™ Ventilation: cool comfort on every journeyAirSense ventilation technology creates a continuous flow of cool air through the car seat's structure.
The result? A fresh environment even on hot days, ideal for long journeys or daily commutes.
- Advanced integrated ventilation
- Continuous air distributed laterally
- Keeps the child comfortable and relaxed
360° Rotation: total practicality
The 360° rotation allows you to easily swivel the seat to place or remove the child without effort.
- One-hand control
- Full rotation for front access
- Facilitates daily placement
- Ideal for quick routines and stress-free travel
Sun canopy: extra protection
The sun canopy offers additional sun protection against intense sunlight.
- Ample coverage for bright days
- Creates extra shade
- Integrated UV protection
- Foldable and easy to adjust
Grows with the child: from birth to 7 years
This car seat is evolutionary, adapting to all stages:
- Includes a newborn insert (initial comfort and a snug feeling)
- 5-point harness up to approximately 105 cm
- Transition to a high-back booster seat
- Use up to 125 cm (~7 years)
Evolutionary Safety with i-Size R129 Standard
The Swivel-Grow Max Air complies with the i-Size R129 standard, ensuring high protection standards:
- Rearward-facing travel up to 105 cm (5x safer option)
- Forward-facing use from 76 cm
- Side protection with deep padded side wings
- Robust structure for multi-directional impacts
The car seat uses independent ISOFIX connectors for easy and precise installation.
- Direct connection to the vehicle
- Full control during assembly
- Reduces installation errors
The support leg adds stability:
- Robust support on the car floor
- Minimizes movement in case of impact
- Ensures secure fastening
- Maximum safety
- Installation with ISOFIX + support leg
2. Forward-Facing (76–125 cm)
- More space and freedom
- Progressive use as the child grows
3. Booster seat mode (100–125 cm)
- Use with the vehicle's seat belt
- Backrest adjusted to height
Technical Specifications of the Britax Römer Swivel-Grow Max Air Car Seat Feature Detail Child height 40 – 125 cm Approximate age 0 – 7 years Weight supported up to 18 kg Standard i-Size R129 Installation ISOFIX + support leg / vehicle belt Facing direction Rearward-facing (40–105 cm) / Forward-facing (76–125 cm) Rotation 360° rotation with one-hand control Dimensions 57 x 44 x 56 cm Seat weight 14.4 kg Frequently Asked Questions about the Britax Römer Swivel-Grow Max Air Car Seat
Does the Swivel-Grow Max Air have a birth capacity?
Yes. It includes a newborn insert, ensuring adequate support and comfort from the first days.
Does AirSense ventilation make a difference?
Yes, it creates a continuous airflow, preventing heat buildup and providing cool comfort, especially in summer.
Is the 360° rotation really useful?
Very much so. It greatly facilitates daily life, especially in lower cars or tight parking spaces.
Is it compatible with all cars?
Being i-Size R129, it has high compatibility, but it is recommended to check with the brand's compatibility system.
Why order the Britax Römer Swivel-Grow Max Air Car Seat from Bonabebe ❤
- With us, you will have specialized human support before, during, and after the purchase
- Infant road safety techniques
- Safest products on the European market for babies
- Babywearing consultants
- Local business
- Women-owned
- LGBTQ+ friendly
✅ From 3 months to 7 years
✅ Exclusively rear-facing travel
✅ R-129 (i-Size) approval
✅ Plus Test approved
✅ Easy and intuitive belt installation
The Max-Safe PRO Car Seat offers protection for your child from 3 months (61 cm) up to 7 years (125 cm/36 kg). It allows for exclusively rear-facing travel for longer, while maintaining comfort features throughout all stages. In addition to safety and comfort, the Max-Safe PRO is manufactured in Germany and offers extra usability and an easy and intuitive belt installation.
- Advanced side impact protection (SICT) integrated into the seat – your child is even more protected against side impacts.
- Soft padded fabrics and ergonomic design ensure safety and comfort.
- Newborn insert included for use between 61 cm and 87 cm.
- Adapts to your child's growth with the adjustable headrest and harness.
- More legroom – thanks to the spacer, you can add 8 cm, providing extra comfort.
- Easy installation with the new ClickTight system and smart belts – ensures quick and secure setup.
- Weighs only 9 kg, making it easy to transport and transfer between cars.
- Removable and washable covers.
- R129 (i-Size) approval.
- Plus Test approved – the most rigorous Swedish test.
- From 3 months to 7 years.
- From 61 cm to 125 cm.
- Up to 36kg.
Dimensions - 58 x 44 x 77 cm
Weight - 9kg
- With us, you will have specialized human support before, during, and after your purchase
- Child road safety techniques
- Safest products on the European market for babies
- Babywearing consultants
- Local business
- Women-owned
- LGBTQ+ friendly
✅ From 3 months up to 7 years
✅ Exclusively rearward-facing travel
✅ R-129 (i-Size) approval
✅ Plus Test approval
✅ Easy and intuitive belt installation
The Max-Safe PRO Car Seat offers protection for your child from 3 months (61 cm) up to 7 years (125 cm/36 kg). It allows for exclusively rearward-facing travel for longer, while maintaining comfort features throughout all stages. In addition to safety and comfort, the Max-Safe PRO is manufactured in Germany and offers extra usability and easy and intuitive belt installation.
- Advanced Side Impact Protection (SICT) integrated into the seat - your child is even more protected against side impacts.
- Soft padded fabrics and ergonomic design ensure safety and comfort.
- Newborn insert included for use between 61 cm and 87 cm.
- Adapts to your child's growth with the adjustable headrest and harness.
- More legroom - thanks to the spacer, you can add 8 cm, providing extra comfort.
- Easy installation with the new ClickTight system and smart belts - ensures quick and secure setup.
- Weighs only 9 kg, making it easy to transport and transfer between cars.
- Removable and washable covers.
- R129 (i-Size) approval.
- Plus Test approval - the most rigorous Swedish test.
- From 3 months up to 7 years.
- From 61 cm to 125 cm.
- Up to 36kg.
Dimensions - 58 x 44 x 77 cm
Weight - 9kg
- With us, you'll have specialized human support before, during, and after your purchase
- Child road safety techniques
- The safest products on the European market for babies
- Babywearing consultants
- Local business
- Women-owned
- LGBTQ+ friendly
✅ From 15 months to 12 years old
✅ From 76cm to 150cm
✅ Isofix Installation
✅ Approval: R129 (i-Size)
The Advansafix PRO car seat is progressive, suitable for children from 15 months old and 76 cm tall up to 150 cm (approx. 12 years) approved by the R129 (i-Size) safety standard. It always travels forward-facing and the transition from the five-point harness (76-105 cm or 22 kg) to the three-point belt with SecureGuard (100-150 cm) is quick and easy with the FLIP&GROW system.
76-105 cm or 22 kg: 5-point harness
From 76 cm and 15 months up to 105 cm in height or 22 kg in weight (whichever comes first), the child is secured to the car seat with a five-point harness, which distributes impact forces across five points: two on the shoulders, two on the hips, and one on the buckle located between the legs. The harness pads reduce the child's movements in the event of a collision, as well as providing greater comfort for the harness. At this stage, the seat is installed using Isofix and a top-tether.
100-150 cm: belt with SecureGuard
From 100 cm in height (and no later than 105 cm or 22 kg), the child is secured directly with the car's three-point seat belt, in combination with SecureGuard. This piece adds a fourth anchor point to the belt to keep the central part in the correct position over the pelvic area, preventing it from dangerously rising to the belly. It helps reduce forces on the abdomen by up to 35% in the event of a frontal impact. At this stage, the seat is installed using Isofix.
When it's time to transition from the harness to the seatbelt, it's much easier thanks to the FLIP&GROW function. Simply press a button to unlock the headrest and adjust it to the required height, then store the harness (without removing the chest pads) in the back of the seat, behind the cover, so it doesn't get lost. Next, move the FLIP&GROW adjustment plate, turn it to position the SecureGuard over the car seat, and the transition is complete.
Other features of the Advansafix PRO car seat from Britax Romer:
- Includes XP-PAD cushion for use with the car seat belt to protect the neck
- Side Impact Absorption System (SICT)
- 3 recline levels
- V-shaped headrest
- Independent Isofix arms
- Removable and machine-washable cover
- At only 44 cm wide, it allows you to install 3 car seats in the back seat of the car
Dimensions: 60-83 x 44 x 48
Weight: 10 kg
Approval: UN R129/03
- With us, you will have specialized human support before, during, and after your purchase
- Child road safety techniques
- The safest products on the European market for babies
- Babywearing consultants
- Local business
- Women-owned
- LGBTQ+ friendly
✅ From 15 months to 12 years
✅ From 76cm to 150cm
✅ Isofix Installation
✅ Approval: R129 (i-Size)
The Advansafix PRO car seat is adaptable, suitable for children from 15 months of age and 76 cm tall up to 150 cm (approx. 12 years) approved by the R129 (i-Size) safety standard. It always travels forward-facing and the transition from the five-point harness (76-105 cm or 22 kg) to the three-point seat belt with SecureGuard (100-150 cm) is quick and easy with the FLIP&GROW system.
76-105 cm or 22 kg: 5-point harness
From 76 cm and 15 months up to 105 cm height or 22 kg weight (whichever comes first), the child is secured in the car seat with a five-point harness, which distributes impact forces at five points: two at the shoulders, two at the hips, and one at the buckle located between the legs. The harness pads reduce the child's movements in the event of a collision, in addition to providing greater comfort to the harness. At this stage, the seat is installed using Isofix and a top-tether.
100-150 cm: seat belt with SecureGuard
From 100 cm in height (and no later than 105 cm or 22 kg), the child is restrained directly with the car's three-point seat belt, in combination with the SecureGuard. This piece adds a fourth anchor point to the belt to keep the central part in the correct position over the pelvic area, preventing it from dangerously rising to the belly. It helps reduce forces on the abdomen by up to 35% in the event of a frontal impact. At this stage, the seat is installed using Isofix.
When it's time to transition from the harness to the seat belt, it will be much easier thanks to the FLIP&GROW function. Simply press a button to unlock the headrest and adjust it to the required height, then store the harness (without removing the chest pads) in the back of the backrest, behind the cover, so it doesn't get lost. Next, move the FLIP&GROW adjustment plate, rotate it to position the SecureGuard over the car seat, and the transition is complete.
Other features of the Britax Romer Advansafix PRO car seat:
- Includes XP-PAD cushion for use with the car seat belt to protect the neck
- Side Impact Cushion Technology (SICT)
- 3 recline positions
- V-shaped headrest
- Independent Isofix arms
- Removable and machine-washable cover
- At just 44 cm wide, it allows you to install 3 car seats in the back seat of the car
Dimensions: 60-83 x 44 x 48
Weight: 10 kg
Approval: UN R129/03
- With us, you will have specialized human support before, during, and after purchase
- Child road safety techniques
- Safest products on the European market for babies
- Babywearing consultants
- Local business
- Women-owned
- LGBTQ+ friendly
360º Rotation
Once installed on the FLEX BASE 5Z (sold separately), the Dualfix 5Z i-Size rotates 360º to allow rearward facing travel from 61 cm to 105 cm (recommended) or, if desired, forward facing from 76 cm and 15 months of age. We recommend using the Dualfix 5Z rearward facing for the entire use of the seat, as this orientation best protects the cervical vertebrae and head in the event of a frontal collision, the most frequent type of accident on roads. In addition, the Dualfix 5Z rotates 90º to both sides to place and adjust the harness to the child from the open car door and can rotate in any recline position it is in.
Available in various colors, the Atlantic Green, Fossil Grey and Galaxy Black colors belong to the sustainable Green Sense range and are made from recycled PET plastic bottles. It features a mesh fabric, also recycled, in certain areas of the headrest, backrest and seat base to promote air circulation and provide greater comfort during travel.
Maximum comfort for the child
Reclines in six positions both rearward and forward facing. The anti-rebound bar can be adjusted by 8º to better adapt to the car seat and offer up to 10% more legroom.
Greater side protection
The soft, padded side wings act as a protective shield that helps absorb the force of a side impact, thus reducing the risk of injury to the child.
5-point harness with neoprene pads
The child is secured with the five-point harness both rearward and forward facing, which, in the event of a collision, distributes the impact force among the five attachment points: two at the shoulders, two at the hips, and one at the central buckle located between the legs.
The Dualfix 5Z's FLEX BASE 5Z is installed with ISOFIX and a support leg. Compatible with any vehicle seat. Base sold separately here.
Isofix with Pivot Link
The ISOFIX connectors feature Britax Römer's patented Pivot Link system, which initially directs the impact force downwards, pushing the seat against the vehicle seat and absorbing energy, then continuing forward more gently. This reduces the risk of head and neck injuries.
The FLEX BASE 5Z is compatible with BABY-SAFE 5Z, BABY-SAFE 3 i-SIZE and DUALFIX 5Z.
Removable textile
Both the textile and the chest pads are easily removable for machine washing, without removing the harness.
- With us you will have specialized human support before, during and after your purchase
- Child road safety techniques
- The safest products on the European market for babies
- Babywearing consultants
- Local business
- Women-owned
- LGBTQ+ friendly
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